Schoodic Woods Campground is across Frenchman's Bay (north) from Acadia NP. It just opened last Labor Day. It was still pretty shiny when we were there. If you go there you will pass Ruth and Wimpy's (the big red lobster). Great local restaurant. Also close to the campground is the US Bells foundry. http://www.usbells.com/ great work, pleasant folks. Their bells have wonderful tones.
There are several logging museums in Maine also. http://www.maineforestandloggingmuseum.org/ (in Bradley) These folks have restored a Lombard Log Hauler and run it occasionally. It's a rare piece of Maine history.
Rangeley Lake State Park, in northwest, ME is a beautiful area, if you get near there. There are great views on a scenic drive as you head south from the state park area.